GSK 988T, User Manual

Page: 127 / 416

Chapter
Ⅱ
G Commands
113
Ⅰ
Programming
specify rigid mode without M command )specifies the common tapping cycle and rigid tapping
cycle when programming.
When the rigid tapping is executed, the machine must have the corresponding conditions, i.e.
the spindle uses the position control and is applied to Cs axis, otherwise the system does not
support the function. The function is applied to the machine with high configuration.
End tapping cycle (G84), side tapping cycle (G88), drilling fixed cycle G83/G87 and boring
cycle G85/G89 are in the same Group 10. G80 or one command included in Group 01 can cancel
the tapping fixed cycle. The system executes the normal operation after the drilling fixed cycle is
cancelled. Clear point R and hole bottom (point X or Z) data and other tapping data (P, K, F) is also
cleared.
Vector of C tool compensation during the course of tapping is temporarily cancelled, but
automatically recovers after the command is executed.
2.20.1 Tapping Mode
Tapping cycle is divided into common mode and rigid tapping mode, and the follow method
can specify the rigid tapping mode; when N0.5200#0=0 and M29 is not specified, the system
executes the common tapping mode.
1 ） Specify M29 S**** before G84 (G88) blocks;
2
）
It is specified in the same block in G84 (G88) tapping blocks; M command for clamping C
axis cannot be specified in G84/G88 blocks in the mode.
3
）
G84/G88 is used for rigid tapping(Bit0 of No.5200 is set to 1); in the mode, G84/G88 is
used for only the rigid tapping mode instead of the common tapping mode.
M29 (the parameter sets other M command to specify it) is for rigid tapping, the system
alarms when S is specified between M29 and G84/G88 blocks or the axis movement command is
specified; the system alarms when M39 is specified repetitively in tapping cycle (M29 cannot be
specified repetitively).
M29 Sxxxx commands rigid tapping mode. The corresponding switch is done after PLC
receives M29 and the spindle stops rotation. The spindle output is equivalent to S0 output in M29.
G84 X_ C_ Z_ R _ P_ F_ K_ M _;
X_ C_;
G80;
G84 X_ C_ Z_ R _ P_ F_ K_ M29 S_;
X_ C_;
G80;
M29 S_
；
G84 X_ C_ Z_ R _ P_ F_ K_ (M_);
X_ C_;
G80;